Fig. 1. Effects of a one-week exposure of BEAS-2B cells to TPM from 3R4F reference cigarette smoke (7.5 µg/mL) and THS 2.2 aerosol (7.5 µg/mL, 37.5 µg/mL, and 150 µg/mL) on cell proliferation: (A) growth rate, (B) growth curve. Cells were counted every day during 7 days treatment. After 3 days cells were reseeded to new wells and the experiment was continued up to 7 days. Due to that the result are presented in 2 separate (left and right) graphs.